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Basic steps to follow while solving problems

This may not be applicable for everyone but it works for most people.

1. Focus on the Problem. Establish a clear mental image of the problem.

A. Visualize the situation and events by sketching a useful picture.

B. Identify physics concepts and approaches that might be useful to reach a solution.

C. In your own words, precisely state the question to be answered in terms you can calculate.

2. Describe the Physics. Refine and quantify your mental image of the problem.

A. Draw any necessary diagrams with coordinate systems that are consistent with the approaches you have chosen.

B. Name and define consistent and unique symbols for any quantities that are relevant to the situation. Consistency her will avoid problems later.

C. Identify the target quantities that will provide the answer to the question.

3. Plan a Solution. Turn the concepts into math.

A. Construct specific equations to quantify the physics concepts and constraints identified in your approach.

B. Outline a plan either leading backward from the target quantities to quantities that are known or leading from known quantities to the target quantities.

4. Execute the Plan. This is the easiest step – it’s just the algebra/calculus/etc.

A. Arrive at a formula for your target quantities by following the solution steps.

B. Check the units of your final formula before putting in numbers.

C. If quantities have numerical values, substitute them in your final equation to calculate a value for the target quantity.

5. Evaluate the Answer. Be skeptical. Ask yourself what a wrong answer would look like.

A. Is the answer properly stated as an answer to the question you identified?

B. Is the result reasonable?

C. Is the answer complete?